diplodocus.org Git - nmh/blob - uip/comp.c

   1
   2 /*
   3  * comp.c -- compose a message
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <h/utils.h>
  12 #include <h/fmt_scan.h>
  13 #include <fcntl.h>
  14
  15 static struct swit switches[] = {
  16 #define DFOLDSW                0
  17     { "draftfolder +folder", 0 },
  18 #define DMSGSW                 1
  19     { "draftmessage msg", 0 },
  20 #define NDFLDSW                2
  21     { "nodraftfolder", 0 },
  22 #define EDITRSW                3
  23     { "editor editor", 0 },
  24 #define NEDITSW                4
  25     { "noedit", 0 },
  26 #define FILESW                 5
  27     { "file file", 0 },
  28 #define FORMSW                 6
  29     { "form formfile", 0 },
  30 #define USESW                  7
  31     { "use", 0 },
  32 #define NUSESW                 8
  33     { "nouse", 0 },
  34 #define WHATSW                 9
  35     { "whatnowproc program", 0 },
  36 #define NWHATSW               10
  37     { "nowhatnowproc", 0 },
  38 #define VERSIONSW             11
  39     { "version", 0 },
  40 #define HELPSW                12
  41     { "help", 0 },
  42     { NULL, 0 }
  43 };
  44
  45 static struct swit aqrunl[] = {
  46 #define NOSW          0
  47     { "quit", 0 },
  48 #define YESW          1
  49     { "replace", 0 },
  50 #define USELSW        2
  51     { "use", 0 },
  52 #define LISTDSW       3
  53     { "list", 0 },
  54 #define REFILSW       4
  55     { "refile +folder", 0 },
  56 #define NEWSW         5
  57     { "new", 0 },
  58     { NULL, 0 }
  59 };
  60
  61 static struct swit aqrul[] = {
  62     { "quit", 0 },
  63     { "replace", 0 },
  64     { "use", 0 },
  65     { "list", 0 },
  66     { "refile", 0 },
  67     { NULL, 0 }
  68 };
  69
  70
  71 int
  72 main (int argc, char **argv)
  73 {
  74     int use = NOUSE, nedit = 0, nwhat = 0;
  75     int i, in = NOTOK, isdf = 0, out, dat[5], ncomps, format_len;
  76     int outputlinelen = OUTPUTLINELEN;
  77     char *cp, *cwd, *maildir, *dfolder = NULL;
  78     char *ed = NULL, *file = NULL, *form = NULL;
  79     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
  80     char drft[BUFSIZ], **argp, **arguments;
  81     struct msgs *mp = NULL;
  82     struct format *fmt;
  83     struct stat st;
  84
  85 #ifdef LOCALE
  86     setlocale(LC_ALL, "");
  87 #endif
  88     invo_name = r1bindex (argv[0], '/');
  89
  90     /* read user profile/context */
  91     context_read();
  92
  93     arguments = getarguments (invo_name, argc, argv, 1);
  94     argp = arguments;
  95
  96     while ((cp = *argp++)) {
  97         if (*cp == '-') {
  98             switch (smatch (++cp, switches)) {
  99                 case AMBIGSW:
 100                     ambigsw (cp, switches);
 101                     done (1);
 102                 case UNKWNSW:
 103                     adios (NULL, "-%s unknown", cp);
 104
 105                 case HELPSW:
 106                     snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
 107                         invo_name);
 108                     print_help (buf, switches, 1);
 109                     done (1);
 110                 case VERSIONSW:
 111                     print_version(invo_name);
 112                     done (1);
 113
 114                 case EDITRSW:
 115                     if (!(ed = *argp++) || *ed == '-')
 116                         adios (NULL, "missing argument to %s", argp[-2]);
 117                     nedit = 0;
 118                     continue;
 119                 case NEDITSW:
 120                     nedit++;
 121                     continue;
 122
 123                 case WHATSW:
 124                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 125                         adios (NULL, "missing argument to %s", argp[-2]);
 126                     nwhat = 0;
 127                     continue;
 128                 case NWHATSW:
 129                     nwhat++;
 130                     continue;
 131
 132                 case FORMSW:
 133                     if (!(form = *argp++) || *form == '-')
 134                         adios (NULL, "missing argument to %s", argp[-2]);
 135                     continue;
 136
 137                 case USESW:
 138                     use++;
 139                     continue;
 140                 case NUSESW:
 141                     use = NOUSE;
 142                     continue;
 143
 144                 case FILESW:    /* compatibility */
 145                     if (file)
 146                         adios (NULL, "only one file at a time!");
 147                     if (!(file = *argp++) || *file == '-')
 148                         adios (NULL, "missing argument to %s", argp[-2]);
 149                     isdf = NOTOK;
 150                     continue;
 151
 152                 case DFOLDSW:
 153                     if (dfolder)
 154                         adios (NULL, "only one draft folder at a time!");
 155                     if (!(cp = *argp++) || *cp == '-')
 156                         adios (NULL, "missing argument to %s", argp[-2]);
 157                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 158                             *cp != '@' ? TFOLDER : TSUBCWF);
 159                     continue;
 160                 case DMSGSW:
 161                     if (file)
 162                         adios (NULL, "only one draft message at a time!");
 163                     if (!(file = *argp++) || *file == '-')
 164                         adios (NULL, "missing argument to %s", argp[-2]);
 165                     continue;
 166                 case NDFLDSW:
 167                     dfolder = NULL;
 168                     isdf = NOTOK;
 169                     continue;
 170             }
 171         }
 172         if (*cp == '+' || *cp == '@') {
 173             if (folder)
 174                 adios (NULL, "only one folder at a time!");
 175             else
 176                 folder = pluspath (cp);
 177         } else {
 178             if (msg)
 179                 adios (NULL, "only one message at a time!");
 180             else
 181                 msg = cp;
 182         }
 183     }
 184
 185     cwd = getcpy (pwd ());
 186
 187     if (!context_find ("path"))
 188         free (path ("./", TFOLDER));
 189
 190     /*
 191      * Check if we are using a draft folder
 192      * and have specified a message in it.
 193      */
 194     if ((dfolder || context_find ("Draft-Folder")) && !folder && msg && !file) {
 195         file = msg;
 196         msg = NULL;
 197     }
 198     if (form && (folder || msg))
 199             adios (NULL, "can't mix forms and folders/msgs");
 200
 201     cp = NULL;
 202
 203     if (folder || msg) {
 204         /*
 205          * Use a message as the "form" for the new message.
 206          */
 207         if (!msg)
 208             msg = "cur";
 209         if (!folder)
 210             folder = getfolder (1);
 211         maildir = m_maildir (folder);
 212
 213         if (chdir (maildir) == NOTOK)
 214             adios (maildir, "unable to change directory to");
 215
 216         /* read folder and create message structure */
 217         if (!(mp = folder_read (folder)))
 218             adios (NULL, "unable to read folder %s", folder);
 219
 220         /* check for empty folder */
 221         if (mp->nummsg == 0)
 222             adios (NULL, "no messages in %s", folder);
 223
 224         /* parse the message range/sequence/name and set SELECTED */
 225         if (!m_convert (mp, msg))
 226             done (1);
 227         seq_setprev (mp);       /* set the previous-sequence */
 228
 229         if (mp->numsel > 1)
 230             adios (NULL, "only one message at a time!");
 231
 232         if ((in = open (form = getcpy (m_name (mp->lowsel)), O_RDONLY)) == NOTOK)
 233             adios (form, "unable to open message");
 234     } else {
 235         if (! form)
 236             form = components;
 237
 238         cp = new_fs(form, NULL, NULL);
 239         format_len = strlen(cp);
 240         ncomps = fmt_compile(cp, &fmt);
 241         if (ncomps > 0) {
 242             adios(NULL, "format components not supported when using comp");
 243         }
 244     }
 245
 246 try_it_again:
 247     strncpy (drft, m_draft (dfolder, file, use, &isdf), sizeof(drft));
 248
 249     /*
 250      * Check if we have an existing draft
 251      */
 252     if ((out = open (drft, O_RDONLY)) != NOTOK) {
 253         i = fdcompare (in, out);
 254         close (out);
 255
 256         /*
 257          * If we have given -use flag, or if the
 258          * draft is just the same as the components
 259          * file, then no need to ask any questions.
 260          */
 261         if (use || i)
 262             goto edit_it;
 263
 264         if (stat (drft, &st) == NOTOK)
 265             adios (drft, "unable to stat");
 266         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 267         for (i = LISTDSW; i != YESW;) {
 268             if (!(argp = getans ("\nDisposition? ", isdf ? aqrunl : aqrul)))
 269                 done (1);
 270             switch (i = smatch (*argp, isdf ? aqrunl : aqrul)) {
 271                 case NOSW:
 272                     done (0);
 273                 case NEWSW:
 274                     file = NULL;
 275                     use = NOUSE;
 276                     goto try_it_again;
 277                 case YESW:
 278                     break;
 279                 case USELSW:
 280                     use++;
 281                     goto edit_it;
 282                 case LISTDSW:
 283                     showfile (++argp, drft);
 284                     break;
 285                 case REFILSW:
 286                     if (refile (++argp, drft) == 0)
 287                         i = YESW;
 288                     break;
 289                 default:
 290                     advise (NULL, "say what?");
 291                     break;
 292             }
 293         }
 294     } else {
 295         if (use)
 296             adios (drft, "unable to open");
 297     }
 298
 299     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 300         adios (drft, "unable to create");
 301     if (cp) {
 302         char *scanl;
 303
 304         i = format_len + 1024;
 305         scanl = mh_xmalloc((size_t) i + 2);
 306         dat[0] = 0;
 307         dat[1] = 0;
 308         dat[2] = 0;
 309         dat[3] = outputlinelen;
 310         dat[4] = 0;
 311         fmt_scan(fmt, scanl, i, dat);
 312         write(out, scanl, strlen(scanl));
 313         free(scanl);
 314     } else {
 315         cpydata (in, out, form, drft);
 316         close (in);
 317     }
 318     close (out);
 319
 320 edit_it:
 321     context_save ();    /* save the context file */
 322
 323     if (nwhat)
 324         done (0);
 325     what_now (ed, nedit, use, drft, NULL, 0, NULLMP, NULL, 0, cwd);
 326     done (1);
 327     return 1;
 328 }